Composition of matter for making formaldehyde candles.



C'. KATZENBERGER.

COMPOSITION 0F MATTER PoR MAKING FORMALDEHYDB CANDLES.

APPLICATION FILED AUG. 31, 1910.

1904741 6. Patented Dee. 17, 1912.

AumTEn sTATEs PATENT .oEEioE CHARLES .KATZENBERGER, -0F HOBOKEN, NEW JERSEY.v L

CHPOSITION 0F MATTER FOB. IISLIAKIN'Grl FORMALDEHYDE CANDLES.

Specification of Letters Patent.

, Patented Dee.1.7,1912.

Application led August 81, 1916. Serial No. 579,854..

To all lwhom 'it may concern: A

Be it known that I, CHARLES KATZENBER- GER, a citizen of the United States, and a resident of Hoboken, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Compositions ofy Matter for Making Formaldehyde Candles,

of which the following is a full, clear, and

exact specification.-

This invention `relates more part1cu1arly to a candle from which is liberated a gaseous disinfectant when ignited for destroylng the germs of infectlous dlsease and purifying the surrounding atmosphere thereof, and has for its object to provide a composition of Amatter wherein the well known germicide property of formaldehyde isemployed in conjunction with inflammable non-volatile ingredients the heat from which when ignited will convert lthe formaldehyde to a gas or vapor which will separate from the non-volatile Aingredients and permeate the surrounding air to effectively destroy all prevalent dangerous germs.

My invention has for its further object to provide a process whereby the formaldeyde and associate ingredients are combined in candle .form so as to be convenient for-transportation and adapted for ready use in the compartments of buildings or other places requiring to be disinfected.

A still further object ofthe invention is to rovide a form of formaldehyde candle which will not smoke in liberating the gas or vapor therefrom and which gas or vapor is not dangerous to lpersons who may inhale a limitedquantity and will not injure fabrics or clothes or like articles in contact therewith. l

The invention will be hereinafter more particularly described with reference to the accompanying drawing which forms a part of this specification, and will then be pointed out in the claim at the end of the description.

In the drawing, Figure 1 is an elevation j of one form "of candle embodying my invento employ this form of candle owing to its convenience for use, though it is clear that other forms may be adopted.

For the purpose of making a number of the candles 10l my. composition consists of 'the following ingredients combined in the proportions stated, viz': paraformaldehyde, 8 `jounces'; formaldehyde. in concentrated aqueous solution, 5?; ounces; stearic acid, 16 ounces; paraffin, 16 ounces. In combining these ingredients 'the paraformaldehyde and formaldehyde are mixed in any suitable receptacle. 'Ihestearicl acid is then melted by' heat-in a receptacle and when the temperature thereof has lowered, butnot sufficiently for the liquid to re-congeal, it yis incorporated by agitation with the mixture of paraformaldehyde and formaldehyde. The pan aliin is preferably melted by heat in a separate receptacle simultaneously with the stearic acid and whenA the liquid has likewise cooled vwithout re-solidifying it is mixed in any suitable manner with the mixture of paraformaldehyde, formaldehyde and stearic acid. While the mingled ingredients are still liquid, or when sufficiently cooled to be in a semi-liquid state the com- -position'is formed into candles, similar to the cone-shape as illustratedin the drawing,

.or other shapes, if preferred, by pouring the liquid or'semi-congealed mass into suitable'molds of any desired size and which will readily solidify in a cool temperature; The candle may then be used in this form though I prefer to coat each candle subsequently with a 4melted solution of stearic acid which serves to prevent evaporation of any free lformaldehyde lwhich may be liberated in the mass of mixed ingredients until the candle is used. j

In practice the candle 10 is placed in a dish or open receptacle'14, as shown in Fig. 2, and the apex 13 of said candle is lighted. The germicide property of formaldehyde is well known, and under combustion the paraformaldehyde is converted into formaldej formaldehyde -candle in any preferred form g l l 1,047,416

or size as occasion may require, and that ounces, formaldehyde in concentrated aqueformaldehyde in other forms may be used ousv solution 5% ounces, stearic acid, 16 or other inammable ingredients employed ounces, andparain 16 ounces.-

in conjunction therewith; This specification signed and witnessed '5 Having thus lde'scrilped my invention, I this thirtieth day of August A. D. 1910.

claim as 1. :w and deslre to secure byLet- 1 ters Patent CHARLES KATZENBLRGER.

The composition 'of matter herein de. Witnesses: scribed ,for making formaldehyde candles, ROBT. B. ABBOTT, 0 and which consists of yperaformaldehyde 8 S. SAHNER. 

